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19. The same result can be achieved by an oval or distorted oval section as shown in Figure 2a (made for example by flattening a wire), in which the major axis dimension of the oval I1 is radial of the coil and the minor axis dimension of the oval I8 is axial of the coil. Search and read the full text of patents from around the world with Google Patents, and find prior art in our index of non-patent literature. Subject: US Patent number search Category: Miscellaneous Asked by: ammon-ga List Price: $20.00: Posted: 27 Jan 2006 06:10 PST Expires: 26 Feb 2006 06:10 PST Question ID: 438276 A toy consisting of a helical spring in which the force between turns is substantially zero in closed position when no external force is operating, in which in the position of rest each coil contacts an adjacent one, in which the spring cross section is of a shape which has essentially lower torsional stillness for a given cross sectional area than a square, which when bent in the'hands transfers turns bodily from a high end to a low end, and when started by a user on a suitable surface walks end over end down hill. Google Patent Applications: Google patent applications that are pending before the United States Patent and Trademark Office (USPTO). Google Patents. Where number is the number of the patent for which you want to view. The search engine database includes patents from more than 12 different countries, including the United States. Google Patent search is a big improvement over what the United States Patent and Trademark Office offers because many patents are not text-searchable there, plus many patent researchers find Google Patents to be easier and more thorough. For a circle having an area of one square inch, the value of Go is 1.13. 10. This application is a continuation in part of my application Serial No. When the stiffness of the spring is small as compared to its weight, the deflected end will move as indicated, tending to restore its balanced position by transferring the deflected coils along the curved center line of the spring, thus producing motion along a circular path 34', and thereby creating centrifugal. An amusement device comprising an amusement platform having an upper starting portion and a plurality of landing portions, in combina 05 tion with a helical spring bent in an axial semicircle having its forwardmost turn restin on a landing portion and its rearwardmost turn resting on a starting portion, the spring having dimensions and energy relations which permit it to 70 walk from the starting portion to the next landing portion and on to successive landing portions without application of force beyond an initial starting force and the action of gravity. In this search bar, the user can enter either a number of a patent publication of interest or can enter the technology or the topic of interest in which s/he wishes to see what has been patented so far. ; Note: inventor and assignee names must … If you find a patent you are looking for, make sure to write down the patent number and any other relevant information. Canadian Patent Database; Number Search; Canadian Patents Database / Number Search. Thanks again for posting. An amusement device consisting of an amusement platform having a higher starting portion and a plurality of successively lower landing portions, in combination with a toy of helical spring form having substantially no compression or tension between turns in closed position when no external force is acting, havin a radial cross sectional dimension between 1.1 and 10 times the axial cross sectional dimension, having an outside diameter between 4 and 100 times the radial cross sectional dimension and having a solid height between A and times the outside diameter, the spring bent in an axial semicircle extending from the starting portion to the next landing portion on the amusement platform, and capable of walking to the next landing portion in successive end-over-end steps without further application of external force beyond the starting force and the action of gravity. Search the world's information, including webpages, images, videos and more. It has been found as a practical matter that an incline of from 2 to 4 inches per foot is optimum in the case of an inclined plane as shown in Figure 6. You can also search for patent attorneys & agents. Conduct a patent search relevant to your invention or product. Utility patents must have numbers entered as seven or eight characters in length, excluding commas, which are optional. you sometimes cannot access the latest granted patents or published patent applications). Google Images. 18. Based upon my experience with the device, and theoretical considerations, I am able to set forth certain theories of operation, but in doing this it is not desired to limit to this identical operation or predicate the disclosure upon the validity of the theory. For assistance with Patent e-Filing, or to suggest improvements to the online system, or report technical problems, please call the Patent Electronic Business Center at: … A “ patent number search ” simply involves searching for a specific patent number. In the drawings I have chosen to illustrate one only of the embodiments in which my invention might appear, with a minor variation, the form 2 primarily shown being chosen from the standpoints of convenience in illustration, satisfactory operation and clear demonstration or the principles involved. It has also been found that for practical operation of the device the outside diameter of the coil should be between 4 and 100 times the radial dimension of the coil section, the preferable value being between 10 and 50 times and the most desirable value about 30 times. Of course, to start the action, the necessary energy must be applied by an outside force such as the hand. An amusement device comprising an amusement platform having an anti-slip surface and in the form of an inclined plane having an upper starting portion and a plurality of lower landing portions, in combination with a helical spring of natural frequency between 10 and 100 cycles per minute, in which the force between turns in closed-position is substantially zero when no external force is acting, and which walks end over end down the inclined plane. 7. A helical spring toy having its turns of cross sectional dimensions which are substantially longer in the radial than in the axial dimension, curved in. Patent Assignment Search. 12. Try the beta replacement for EFS-Web, Private PAIR and Public PAIR. U.S. patents issued from 1790 through 1975 may only be searched on the USPTO website by issue date, patent number, or classification code. Improved polycrystalline particulates and methods of preparation are disclosed, particularly for use as a lithium insertion cathode for a rechargeable lithium battery. The search engine database includes patents from more than 12 different countries, including the United States. If, in this position, the weight of the end coils is greater than the strength of the spring, the end will follow this excess force or weight and move downward until it reaches the next lower step at 3|, at which the cycle will be repeated. Phrases turned into words: Much like the traditional Google Search, the patent search will break each word you type into the search bar into its component words and will treat them separately in terms of Boolean search terms. Limitations should also be imposed on length in order that the fan-like portion of the coil can spread over the semi-circular axial are without causing permanent deformation, or without making it impossible to hold the turns in position in the absence of external force, or at the other extreme without falling side-ways and losing control. Between the positions of Figures 3 and 4, the relative elevation of the end 22 with respect to the end 23 has increased, and turns of the coil have been transferred from the solid pile 24 to the solid pile 25 in a very entertaining manner, while retaining the fan-like intermediate coils 26. The steps to use Google Patent Search are much like any other search you might perform on the Internet. In order to make the spring walk, therefore, it is necessary to keep the ratio of stiffness to weight below a, certain limiting value. 11. Free search engines include Google Patents Advanced Search, which allows you to search for patents that are more than twenty years old. This ratio of stiffness to weight or mass also determines the natural frequency of the spring, which is the criterion for the velocity of the walk of the spring. This force must overcome the resisting torque which the material of the spring has when bending the coil axis through are. Sign up Today! Google's recently awarded patents touch on interesting topics like knowledge panels, machine learning, and more. Patent Number: (Max. In Figure 8, an inclined plane 28' consists, of a belt 39 extending over tension pulleys 46 and 4| suitably driven uphill as by providing an electric motor 42 (suitably of variable speed type) on the shaft of pulley 40. Google Scholar provides a simple way to broadly search for scholarly literature. Are pending before the United States patent and Trademark Office ( USPTO ) be empty! 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